Home / 21,392.92-29,521.74-11,962.36

Finding the Fourth Proportional to 21,392.92, 29,521.74 and 11,962.36

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Solution

The fourth proportional to 21,392.92, 29,521.74 and 11,962.36 is: 16,507.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,392.92 : 29,521.74 = 11,962.36 : x
  2. Step 2: Convert to fraction form
    21,392.92/29,521.74 = 11,962.36/x
  3. Step 3: Cross multiply
    21,392.92x = 29,521.74 × 11,962.36
  4. Step 4: Simplify right side
    21,392.92x = 353,149,681.71
  5. Step 5: Solve for x
    x = 353,149,681.71/21,392.92
  6. Step 6: Final answer
    x = 16,507.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.